Motorists crossing the Lake Pontchartrain Causeway late Saturday night and early Sunday morning should expect delays. Repair work on the southbound drawbridge will force some lane detours, Causeway officials said.

The repair work, which has been scheduled and rescheduled several times this week already, is being done overnight Saturday into Sunday because it is the period when the fewest vehicles use the 24-mile bridge, officials said.

From Saturday at 9 p.m. until Sunday at 4 a.m., motorists in both directions could face delays of up to 20 minutes as Causeway police direct motorists through the project area using the nearby crossovers.